A portabwe hyperbaric bag, of which one brand is de Gamow bag (pronounced Gam-Off) is an infwatabwe pressure bag warge enough to accommodate a person inside. A person can be pwaced inside de bag which is seawed and infwated wif a foot pump. Widin minutes, de effective awtitude can be decreased by 1000 to as much as 3000 meters (3281 to 9743 feet) depending on de ewevation, uh-hah-hah-hah. The bag is pressurised to 105-220 mmHg, pressure gradient is reguwated by pop-off vawves set to de target pressure.[1] It is primariwy used for treating severe cases of awtitude sickness,[2][3]high-awtitude cerebraw edema, and high-awtitude puwmonary edema.[4] Like office-based hyperbaric medicine, de Gamow bag uses increased partiaw pressure of oxygen for derapy of hypobaric injury, but it has de advantage of being portabwe for fiewd use. Patients typicawwy are treated in 1-hour increments and den are reevawuated.[1]

The Gamow bag was named after its inventor, Dr. Igor Gamow, son of George Gamow. Dr. Gamow originawwy designed a predecessor to de gamow bag cawwed "The Bubbwe" to study de effect of high awtitude on stamina and performance in adwetes. Dr. Gamow water re-designed 'The Bubbwe' into a bag dat couwd be used in de high-awtitude wiwderness.